Precision Power 355cs - Manual (Page 10)

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automatically resets.
Tweeter DC Clip Protector
These components limit the amount of current delivered to the tweeter if they are
overdriven by either excess amplification or clipped signal from an overdriven
amplifier .
connections to the amplifier
The crossovers are supplied with a removable screw type connector . The
crossover has two sets of input terminals, this allows the system to be driven by
either two or four channels of amplification . To correctly use these wiring schemes
you must move the Bi-amp/Parallel switch to the desired position .
To bi-amplify the system you will need two stereo amplifiers (or 4 amplifier
channels) with one pair of channels to drive the tweeters and one pair to drive
the woofers .
You may also Bi-wire the system by connecting the woofer input terminals to the
amplifier and connecting the woofer input terminals to the same amplifier with
another set of speaker wires . This is sometimes done to allow a specific high
frequency or low frequency cabling to be used for the two separate signal paths .
See Crossover Installation for additional information on bi-wiring .
Be sure to connect the positive crossover terminals to the positive speaker
terminals and positive amplifier terminals, also ensure that the negative crossover
terminals connect to the negative amplifier and speaker terminals . Once all of the
wires are attached to the connector and the crossover is mounted, the connector
can be plugged into its mating receptacle on the crossover .
speaKer WirinG
speaker wire selection
Use insulated two-conductor stranded wire to connect the crossover to the
speakers and amplifier . The size of the wire can have an audible effect of the
performance of the system . Stranded 18 gauge "zip cord" will work, but can result
in lower output or unpredictable frequency response . For wire runs of 50 feet (15
m) or less, we recommend 16 gauge or larger wire . The crossover connector will
accept up to 14 gauge wire .
polarity and phasing
The polarity of the positive/negative orientation of the connections for every
speaker and amplifier connection must be consistent so all the speakers will be
in phase . When the polarity of one connection is reversed, bass output may be
reduced or stereo imaging degraded . Most speaker wire is marked so you can
identify the two conductors . There may be ribs or a stripe on the insulation of one
conductor, or the wire may have clear insulation with different color conductors
(copper and silver) . There may also be polarity indications printed on the
insulation . Identify the positive and negative conductors and be consistent with